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LG Manuals
Heat Pump
Multi IV
Engineering manual
Table Of Contents - LG Multi IV Engineering Manual
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Contents
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Table of Contents
Table Of Contents
3
Unit Nomenclature
4
Heat Recovery Units (Hru)
4
Outdoor Units And Heat Recovery Units
4
Indoor Units (Idu)
5
Acronyms
6
Product Data
7
Mechanical Specifications
8
General
8
Temperature Ranges
8
Multi V Iv Heat Pump And Heat Recovery Outdoor Units
8
Refrigerant System
8
Fans And Motors
9
Controls
9
Electrical
9
Multi V Iv Heat Recovery Units
9
General Data
10
Single-Frame 208-230V Heat Pump Units
10
Dual-Frame 208-230V Heat Pump Units
11
Triple-Frame 208-230V Heat Pump Units
13
Single-Frame 460V Heat Pump Units
15
Dual-Frame 460V Heat Pump Units
16
Triple-Frame 460V Heat Pump Units
18
Single-Frame 208-230V Heat Recovery Units
20
Dual-Frame 208-230V Heat Recovery Units
21
Triple-Frame 208-230V Heat Recovery Units
23
Single-Frame 460V Heat Recovery Units
25
Dual-Frame 460V Heat Recovery Units
26
Triple-Frame 460V Heat Recovery Units
28
Two-Port Heat Recovery Unit
30
Three-Port Heat Recovery Unit
30
Four-Port Heat Recovery Unit
30
Heat Recovery Unit Specifications
30
Electrical Data
31
208-230V, 60Hz, 3-Phase Heat Pump Units
31
460V, 60Hz, 3-Phase Heat Pump Units
32
208-230V, 60Hz, 3-Phase Heat Recovery Units
33
460V, 60Hz, 3-Phase Heat Recovery Units
34
Outdoor Unit Dimensions
35
Center Of Gravity
35
Heat Recovery Unit Dimensions
41
Wiring Diagrams
44
Refrigerant Flow Diagrams
60
Acoustic Data
89
Sound Pressure Levels - Measurement Location
89
Sound Pressure Levels - Heat Pump
90
Sound Pressure Levels - Heat Pump / Heat Recovery
91
Sound Pressure Levels - Heat Recovery
92
Sound Power Levels
93
Heat Pump Sound Power Levels
93
Air Guides
97
Multi V Hail Guard Kits
97
Outdoor Unit Accessories
97
Low Ambient Baffle Kits
98
Zlabka01A Low Ambient Kit For 6-Ton Outdoor Units
98
Zlabka03A Low Ambient Kit For 8-Ton To 14-Ton Outdoor Units
98
Lg Monitoring View (Lgmv) Diagnostic Software And Cable
99
Mv Cycleview
99
Recommended Minimum Pc Configuration
99
Application Guidelines
101
Equipment Selection Procedure
102
Lats Multi V Piping Design Software
102
Adjusting Lats Multi V Output For Altitude
102
Design Choices
102
Always Use Lats Multi V Software
103
Zone The Building–Multi V Iv Heat Pump Systems
103
Calculate The Ventilation Method
103
Designing For Extreme Climatic Conditions
103
Select The Indoor Unit(S)
104
Heating Season
104
Cooling Season
104
Capacity Correction
104
System Sizing Checks
105
Minimum Air Change Requirements
105
Check The Indoor Unit Selection(S)
105
Frost Accumulation
105
Conclusions And Recommendations
106
Determine The System Combination Ratio (Cr)
106
Building Ventilation Design Guide
107
Decoupled Dedicated Outdoor Air System (Ddoas)
107
Unconditioned Outdoor Air (Non-Ducted, Natural Ventilation)
108
Unconditioned Outdoor Air Ducted To Indoor Units
108
Unconditioned Outdoor Air (Non-Ducted, Fan Assisted Ventilation)
109
Coupled Dedicated Outdoor Air (Cdoa)
109
Placement Considerations
110
Heat Pump And Heat Recovery Outdoor Units
110
Selecting The Best Location—Outdoor Units
110
General Mounting
111
Mounting Platform
111
Tie-Downs And Wind Restraints
111
Dealing With Snow And Ice
111
Outdoor Units
111
Installation Space
112
Minimum Space Requirements
112
Installing Outdoor Units Indoors
113
Benefits Of Installing Outdoor Units Indoors
113
Design Considerations Include
113
General Guidelines
113
Selecting The Best Location—Indoor Units
114
Installing In An Area Exposed To Unconditioned Air
114
Dimensions For Heat Recovery Units
115
Minimum Service Clearances For Heat Recovery Units
115
Heat Recovery Unit Parts
115
Heat Recovery Unit Types
116
Refrigerant Piping Design And Layout Best Practices
117
Refrigerant Piping System Quality Assurance
118
Creating A Balanced Piping System
118
Piping Design Guideline Summary
119
Pipe Sizing For Arun Series Heat Pump Systems
120
Heat Pump Triple-Frame Connections
120
Y-Branch Pipe Sizing When Installing A Triple-Frame System
121
Header Pipe Sizing When Installing A Single Outdoor Unit System
121
Pipe Capabilities
123
Conditional Applications
123
Pipe Sizing For Arub Series Heat Recovery Systems
124
Heat Recovery Triple-Frame Connections
124
Heat Recovery Triple-Frame Connection Pipe Sizes
124
Main Pipe Diameter From Outdoor Unit To First Y-Branch
125
Indoor Unit Y-Branches
127
Outdoor Unit Y-Branches
127
Y-Branch Insulation And Pipe Detail
127
Lg Engineered Y-Branch Kits
127
Indoor Unit Y-Branches For Arun Series Heat Pump Systems
128
Indoor Unit Y-Branches For Arub Series Heat Recovery Units
129
Outdoor Unit Y-Branches For Arun Series Heat Pump Systems
130
Outdoor Unit Y-Branches For Arub Series Heat Recovery Units
131
Horizontal Rotation Limit
132
Header Insulation And Pipe Detail
132
Lg Engineered Header Kits
132
Design Conditions
134
Lats Calculated Refrigerant Charge
134
Determining The Total System Charge
135
System Refrigerant Charge Calculator
136
Selecting Field-Supplied Copper Tubing
137
Acr Rated Copper Tubing Material
137
Acr Rated Piping Tube Thicknesses
137
Copper Expansion And Contraction
137
Linear Thermal Expansion Of Copper Tubing In Inches
138
Coiled Expansion Loops And Offsets (Plan View)
139
General Information / Guidelines
140
Layout Procedure
140
Using Elbows
140
Field-Provided Isolation Ball Valves
140
No Pipe Size Substitutions
141
Pipe Supports
141
Pipe Sleeves At Penetrations
142
Underground Refrigerant Piping
142
Utility Conduit Sizes
142
Refrigerant Piping For Separated Outdoor Units
143
Trapping
143
Maximum Pipe Length From First Odu Y-Branch To Farthest Odu
143
Elevation Difference Between Outdoor Units
143
Oil Trap
143
Pipe Slope
144
Inverted Trap Applications
144
Allowable Pipe Slope
144
Examples Of Inverted Traps
144
Refrigerant Piping Installation
145
Refrigerant Safety Standards
145
Flaring Practices
145
Brazing Practices
145
Refrigerant Piping System Insulation
146
Electrical Connections
147
Arun Series Heat Pump Systems (208-230V & 460V)
148
Arub Series Heat Recovery Systems (208-230V & 460V)
149
Generation 4 Equipment
150
System Component Combinations And Operation Status
150
Serial Numbers Of Air / Water Source Units With Gen 4 Software
150
Dip Switch Settings For Gen4 Equipment
150
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